Wrench.



PATENTED MAB. 6, 1906.

G. W. A USTIN.

WRENCH.

APPLICATION mum um 12. nos.

I swmm W' w No. 814,343. PATENTED MAR. 6, 1906. G. W. AUSTIN.

WRENCH.

APPLIUATIOH FILED KAY 12. 1905.

2 EHEBTS-BHBET 2.

WITNESSES: LVVENTOR.

ononon w. AUS"1N, or

PATENT OFFICE.

HOLLIS'IER, CALIFORNIA.

WRENCH.

Specification of Letters Patent.

Patented March 6, 1906.

Application filed May 12, 1905. Serial No. 268.133.

To all whrmt it may concern.-

Be it known that I, GEORGE W. AUSTIN, a citizen of the United States,residing at Hollister, in the county of San Benito and State ofCalifornia, have invented new and useful Improvements in Wrenches, ofwhich the following is a specification.

My invention relates to improvements in wrenches.

The objects of the invention are to provide for efficiency and siniplicity and extended use, especially in screwing together pipe-sections andunscrewing the same one from the other; and to these ends the inventionconsists of certain structural features substantially as hereinafterfully disclosed and specifically pointed out.

In the accompanying drawings, Figure 1 is a perspective View of myinvention in its referred embodiment. Fig. 2 is a disassem led view ofthe pivoted jaw or claw member. Fig. 3 is a view of the stationary orhandled jaw member with the aforesaid jaw member and pivot-bolt removed.Fi g. 4 is a View showing one application of the tool or wrench which issuggestive of the several other forms of its application.

In the disclosure of my invention I provide a handled or stationary awmember 1, having its handle or lever portion 1 of suitable length forobtainin the re uisite purchase or leverage in ractica use. ts jawproper, 1", integral wit the handle or lever, is composed, preferably,of suitably-s seed-apart rightined arms 1, between w 'ch is hung amovable or pivoted jaw member 2 upon a pivotbolt 3, passed throughregistering holes in said arms and pivoted jaw member andhaving theusual headed end and a nut 3 applied to its opposite end for theretention t ereof in place. Said arms l are each rovided or equi pedupon both of its right-lined or perpen icular edges with two sets ofrate letteeth 1 1 ,with their effective edges facing in oppositedirections for a purpose presently seen. Said right-lined arms are eachproduced with a concaved or arcuate forward edge 1, also equipped withnumerous ratchet movable 'aw member, as also the stationary jaw mom orproper, are formed of steel, the purpose of which is obvious, and thatthe andle or lever portion of the latter member is designed to be ofordinary iron formation, as well understood.

The stationary jaw member 1 is provided with addit onalivot-bolt-receiving holes, as at 4, to provi e for adjusting the movablejaw member, as in accommodating the wrench to varying or different sizesof pipe-sections in operating thereon. It is also noted that this wrenchis capable of use for turning ipesections of from the size of anordinary Feedencil in cross-section to two and a half inches in diameterand that, so far as m knowledge extends, it is the only wrench knownwhich is eil'ective without the additional use of a chain or screw orother like means for screwing together or separating ver Y largepipe-sections.

he movable hook or aw member may be made any practical size, larger orsmaller, the other members or parts being proportioned accordingly insize.

In the use of this wrench or tool it may be applied with its hook membercaught under a (pipe-section, say, of large diameter and the a joininglateral ratchet-toothed edge of the stationary jaw member restingoppositely upon the pipe-section. By exerting the requ1site pressure uon the wrench lever or handle and then relbas ng the gri of the jawsupon the pipe thus im arter t ereto and by doing this intermittent y, aswill be obvious, the operation of screwing together pipe-sections orefiectin the unscrewing or separating ably one i e-section being firmlygripped in any suitagi e way against turning, as will be appreciated, orwhere occasion may require t e hook member may be caught over thepipe-section and the opposite lateral edge of the stationary wrench jawmember brought into contact with the pipe-section, having, as abovenoted, oppositel -facing ratchet-teeth for that pur ose. In t 's exampleof the use of the wrenc it will be noted that the presentation ofthemovable jaw for efiectiveness or as relates to the application of theower or pressure is such that'a pipe of muc smaller cross-section may begripped and acted upon in like manner as aforesaid. Again, the wrenchmay be applied axially by presenting the concaved edge of the fixed jawmember to the pipe-section with the hooked or movone from the ot or willbe apparent, presum-- able jaw member resting laterally upon the pipe,which would. impart, it has been practically demonstrated, a verypowerful and effective gripping action.

1. A device of the character described, comprising a handled jaw member,a clawlike jaw member and a pivotal connection therebetween, theclaw-like jaw member having its curved gripping-surface ada ted to facedownward, at a point above and orward of the opposed gripping-surface ofthe handled 'aw member, and the latter adapted to stand in a rearwardand upward angle of inclination, for effectiveness.

2. A device of the character described, comprising a handled bifurcatedjaw member, a claw-like jaw member, and a pivotal connectiontherebetween, the rongs or branches of the handled jaw member havingserrated gripping edges and arranged to stand in a rearward and u wardinclination, and the curved gripping e ge of the claw-like jaw memberadapted to face downward, at a point above and in front of the aforesaidgripping edge of the handled jaw member.

3. A wrench comprising a handled bifurcated jaw member having itsbranches or prongs provided upon their right-lined edges withoppositely-pointing series of gripping teeth or serrations, saidbranches also having concaved serrated forward end gripping edges, aclaw-like jaw member having a serrated concaved gripping edge, and aivotbolt connection between the handle jaw member and the claw-like jawmember, the handled jaw member adapted to permit the shank of theclaw-like jaw'member to move between its branches or rongs and beyondthe forward ends thereof or effecting the vaiious adjustments of theclaw-like jaw mem- In testimony whereof I affix my signature in presenceof two subscribing witnesses.

GEORGE W. AUSTIN.

Witnesses:

ERNEST C. GRIFFIN, E. H. FOSTER.

